[jQuery] Select Length Reference

[Jeff Fleitz]

I apologize in advance if this is in the docs, but I probably won't be
able to access the jQuery site for a while now that the ip has
changed, due to proxy issues.

I want to limit a user from entering more than a specified number of
options, and can't find the correct syntax (or maybe I can't do
this?).  Why aren't these equivalent?

var num = document.getElementById('mySelect').length // returns 5

var num = $("#mySelect").length // returns 1; doesn't change so I know
this isn't correct.

TIA,

Jeff